EP0234208B1 - Thread storage and delivery device, particularly for textile machines - Google Patents

Thread storage and delivery device, particularly for textile machines Download PDF

Info

Publication number
EP0234208B1
EP0234208B1 EP19870100244 EP87100244A EP0234208B1 EP 0234208 B1 EP0234208 B1 EP 0234208B1 EP 19870100244 EP19870100244 EP 19870100244 EP 87100244 A EP87100244 A EP 87100244A EP 0234208 B1 EP0234208 B1 EP 0234208B1
Authority
EP
European Patent Office
Prior art keywords
thread
supports
run
drum
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19870100244
Other languages
German (de)
French (fr)
Other versions
EP0234208A1 (en
Inventor
Josef Fecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Memminger IRO GmbH
Original Assignee
Memminger IRO GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6292251&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0234208(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Memminger IRO GmbH filed Critical Memminger IRO GmbH
Publication of EP0234208A1 publication Critical patent/EP0234208A1/en
Application granted granted Critical
Publication of EP0234208B1 publication Critical patent/EP0234208B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices

Definitions

  • the invention relates to a thread storage and delivery device, in particular for textile machines, with a storage drum in the manner of a rod cage, which has a number of elongated thread support elements arranged at equal radial distances from the drum axis and distributed uniformly in the circumferential direction and extending essentially at both ends in the drum axis direction a drum body or parts connected thereto and each of which is designed in the form of a narrow bracket which on the thread feed side has a radially inwardly tapering area which acts as a run-on slope for the incoming thread and then a thread support area for several turns of a thread winding Forming, at least in sections essentially straight area, followed by a radially projecting, circular, continuous thread outlet board of the drum body or a part connected thereto, the tapering n and the substantially straight areas of all brackets each lie on common rotational bodies intended to be coaxial with the drum axis, as well as with the storage drum on the thread feeding and removal indicator associated with thread feeding and removal elements and with
  • Thread delivery devices whose storage drum is rotatably mounted on a holder in the manner of a rod cage, the thread support elements formed by straight, cylindrical wires or thin rods are fastened at both ends in flange-like parts of a drum body arranged on the storage drum axis, are known in several embodiments (for example DE-OS 3 104 516, DE-OS 2 723 210).
  • the thread winding formed on the rods is given a polygonal shape corresponding to the number of rods, which is advantageous for good slip-free thread entrainment, while on the other hand the relatively narrow thread contact surfaces formed by the rods result in favorable conditions for the axial advancement of the storage winding.
  • separate feed devices must be provided, which are relatively expensive and complex.
  • Such feed devices are dispensed with by a thread delivery device of the prior art (DE-OS 3 437 252) of this type, the storage drum of which is designed as a rod cage is provided with thread support elements in the form of a bow made of thin spring wire, both of which are attached to the drum body and of which each on the thread supply side has a radially inwardly tapering area which acts as a run-on slope for the incoming thread and which is followed by a substantially straight area which forms the thread support area for several turns of the thread or storage roll. Due to the bevel of the start-up area, the turns of the incoming thread which are formed here are automatically axially displaced onto the thread support area under the effect of the thread tension, whereby a continuous advance of the storage roll is achieved.
  • the thread runs from the storage winder over the radially protruding, circular, continuous peripheral edge of the thread outlet eyelet.
  • the arrangement is such that the thread outlet board is arranged in the manner of a circular disk on the drum body, the plane of symmetry of which is approximately at right angles to the thread support area of the thread support elements. In principle, this arrangement also applies to the storage drums in the thread delivery devices mentioned at the beginning.
  • torn-off individual filaments or other fiber parts can detach from the yarn and, in particular, wind around the bars or generally free-standing thread support elements in the thread run-off area. Also in the thread run-up area, adherent collections of such yarn or fiber parts can form between the rods or thread support elements, which accumulate with a longer operating time. Both phenomena lead to the fact that the proper thread flow is finally hindered by the storage drum and there are faults in the thread delivery.
  • the object of the invention is therefore to remedy this situation and to improve a thread delivery device of the type mentioned at the outset such that even when processing such difficult-to-process yarns, for example of low-quality polyamide or polyester yarns, the risk of undesired accumulation of torn off or of that Parts of yarn detached from the yarn, for example torn continuous filaments, are prevented in the thread drain area of the storage drum.
  • the thread storage and delivery device is characterized in that adjoining the thread outlet board in the direction of the bevels of the stirrups is a radially inwardly inclined circumferential surface of a rotationally symmetrical cover which is coaxial with the drum axis and which is at least in the between adjacent stirrups lying areas is continuous in the circumferential direction and into which the brackets are immersed essentially without a step and that the peripheral surface on the thread run-off side of the storage drum can be axially stripped continuously from the thread running from the thread support area to a thread discharge element.
  • the circumferential surface of the cover which is constantly stripped by the running thread, prevents the accumulation of fibers in the drain region of the thread. Since the thread support elements immerse into this circumferential surface without a step, no blind spots can form in the vicinity of the thread support elements, in which undesired accumulations could grow.
  • the peripheral surface of the cover extends from a near the Drainage board of the lying area of large diameter, with an area of smaller diameter radially inwards to at least the middle of the substantially straight bracket parts.
  • the circumferential surface adjoins the end of the outlet board without a step.
  • the circumferential surface of the cover which is continuous all around can have openings which accommodate substantially straight bracket parts, so that the brackets are enclosed on all sides by the peripheral surface.
  • the peripheral surface of the cover can be substantially conical, but it has proven to be particularly advantageous if the peripheral surface has a concave curvature.
  • the cover can expediently consist of a wear-resistant material, at least in the area of the peripheral surface, so that the surface is not impaired by the thread constantly streaking even over long operating periods.
  • the drum body has two coaxial circular flanges, to which the brackets are attached at the ends and of which the drainage rim is formed on one.
  • the brackets are advantageously arranged free-standing between the flange adjacent to their run-in slope and at least in the region of the peripheral surface of the cover. This allows easy cleaning using a compressed air jet.
  • the brackets can also merge substantially tangentially into oblique surface parts of the adjacent flange in the region of their run-in bevel, the oblique surface parts also being able to be formed on rib-like parts of the corresponding flange or of the drum body associated with the individual brackets, which are arranged essentially radially.
  • the drum body itself is advantageously made of plastic.
  • the brackets can lie with their essentially straight areas on an imaginary cone, the diameter of which decreases towards the outlet board. It has proven to be advantageous in practice if the narrowing of the diameter of the straight regions of the stirrups over their length is approximately 0.2-1 mm.
  • stirrups are expediently bent from wear-resistant wire, but in principle it is also conceivable to produce them from preferably wear-resistant coated plastic, in which case they can also be molded directly onto the drum body or formed as stamped or injection-molded molded parts etc.
  • a thread drain ring can be loosely placed on the brackets in the area of the cover.
  • the thread storage and delivery device shown in FIG. 1 has a holder 1 which is set up for fastening to a frame ring of a circular knitting machine and on which a storage drum 4 is rotatably mounted by means of an axle 2 (FIG. 3), which as a drive device has an axle 2 rotatably attached pulley 5 is assigned, which can be set in rotation by a drive belt, not shown.
  • a holder 1 which is set up for fastening to a frame ring of a circular knitting machine and on which a storage drum 4 is rotatably mounted by means of an axle 2 (FIG. 3), which as a drive device has an axle 2 rotatably attached pulley 5 is assigned, which can be set in rotation by a drive belt, not shown.
  • a thread inlet eyelet 6 and a thread inlet eye 7 are arranged on the holder 1 as thread feed devices, through which a thread 8 coming from a spool (not shown) is fed to the storage drum 4 via a thread brake 9 also provided on the holder 1.
  • An inlet sensor 10 scans the thread running towards the storage drum 4 and, if the thread breaks, stops the machine.
  • the thread 8 running out of the storage drum 4 runs through an outlet eyelet forming the thread removal device, which is attached to the holder 1 and is located laterally next to the storage drum 4 and at a predetermined distance below its outlet board 12, so that the outlet drum 4 runs tangentially Thread is guided diagonally downwards and radially outwards; it is sensed by an outlet sensor 120.
  • FIGS. 2, 3 The structure of the storage drum 4 can be seen in particular from FIGS. 2, 3:
  • the storage drum which is essentially made of plastic material, has an approximately disk-shaped circular upper flange 13 and a circular lower flange 14, which also forms the continuous outlet flange 12 and is arranged coaxially at a distance from one another and connected to one another via a coaxial hub part 15.
  • a number of elongate thread support elements arranged at equal radial distances from the drum axis 2 and evenly distributed in the circumferential direction are provided, which are formed by essentially L-shaped brackets 16 which are bent from hardened cylindrical steel wire with a polished surface. .
  • the ends of the brackets 16 are anchored in the two flanges 13, 14. They each have a radially inwardly tapering region 17 on the thread feed side (top in FIG.
  • Thread support area serves for several turns of a thread or storage roll indicated at 20.
  • the radius 18 between the run-on slope and the thread support area can be of the order of magnitude of approximately one to four times the wire diameter of the stirrups 16.
  • Both the tapered Areas 17 and also the areas 19 of all brackets 16 assigned to the radius 18 lie on a common rotational body which is coaxial to the drum axis 2.
  • the imaginary rotational body assigned to the straight region 19 is a cone with a slight incline, the diameter of which decreases towards the outlet rim 12.
  • the narrowing of the diameter in the straight regions 19 is approximately 0.2-1 mm over their length.
  • brackets 16 In the area of their run-in slope at 17, the brackets 16 essentially transition tangentially into inclined surface parts 21 of the adjacent flange 13, which are formed on rib-like parts 22 of the flange 13, which are arranged essentially radially.
  • an uninterrupted, i.e. closed inclined surface 21 may be provided.
  • a cover 23 made of metal or a plastic provided with a wear-resistant surface is placed on the lower flange 14 and can optionally also be formed in one piece with the flange 14.
  • only the substantially straight bracket areas 19 receiving openings 25 are provided in the continuous circumferential surface 24 of the cover 23, the edge of which closely adjoins the bracket areas 19.
  • the peripheral surface 24 connects in the (lower) area of largest diameter to the circular drain board 12 and then extends radially inwards with a concave curvature, with its area of smallest diameter at least up to the center of the substantially straight bracket areas, in In the present case, however, it extends to behind the radially inner side of the substantially straight bracket regions 19.
  • peripheral surface 24 could also be a conical surface. Then the width of the storage roll 20 must be dimensioned such that the running thread 8 only separates from the storage roll 20 very deeply.
  • a bracket 16 with play enclosing thread drain ring 27 is loosely placed in such a way that the running thread 8 runs between the thread drain ring 27 and the peripheral surface 24 of the cover 23 or the outlet board 12.
  • the incoming thread 8 coming from the inlet eyelet 6 runs approximately at 28 in FIG. 2 onto the inwardly inclined parts 17 of the stirrups 16 which form the run-up slope and begins to form the storage roll 20 in the region of the radius.
  • the incoming thread 8 is supported at the top on the parts of the brackets 16 bent outwards in the radius 18 and on the run-up slope and thus continuously pushes the storage roll 20 axially downward.
  • This advancement of the storage reel 20 is facilitated by the fact that the substantially straight thread support areas 19 of the stirrups 16 lie on an imaginary cone which tapers slightly towards the outlet board 12, as has already been explained.
  • the thread 8 running from the storage reel 20 to the outlet eyelet 11 and from there to the knitting point progressively sweeps from left to right from top to bottom in the region of the storage drum 4 shown in FIG. 2, the straight regions 19 of the stirrups lying under the storage reel 20 16 and the areas of the circumferential surface 24 of the cover 23 lying between and below the openings 25.
  • a build-up of thread or fiber particles carried along by the thread 8 is effectively prevented, and it is also prevented that torn-off filaments can loop around the bow 16 in the thread outlet area. Since the stirrup areas 19 plunge softly and continuously into the peripheral surface 24 via the closely fitting openings 25, blind spots are avoided, which cannot be covered by the thread 8 and could therefore lead to the accumulation of fibers.
  • the peripheral surface 24 is continuous all around, only the openings 25 allowing the passage of the bracket areas 19.
  • the brackets 16 then possibly in the vicinity of the flange 12, i.e. subsequent to the substantially straight areas 19, similar to 17, could be bent obliquely outwards, so that there is a substantially C-shaped shape of the bracket.
  • the brackets 16 are arranged in a free-standing manner starting with their region 17 until they are immersed in the openings 25, which is achieved by a correspondingly small diameter of the hub part 15.
  • the brackets are embedded in the plastic material of the drum body or the hub part 15, for example, by half their diameter.
  • the brackets 16 can also be molded parts stamped from sheet steel or injection molded from plastic material, etc., as is also conceivable to use profiled wires that have a cross-sectional shape that deviates from the circular cross-sectional shape for this purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Die Erfindung betrifft eine Fadenspeicher- und -liefervorrichtung, insbesondere für Textilmaschinen, mit einer Speichertrommel nach Art eines Stabkäfigs, die eine Anzahl in gleichen radialen Abständen von der Trommelachse und in Umfangsrichtung gleichmäßig verteilt angeordneter länglicher Fadenauflageelemente aufweist, die im wesentlichen in Trommelachsrichtung verlaufend beidenends an einem Trommelkörper oder damit verbundenen Teilen befestigt sind und von denen jedes in Gestalt eines schmalen Bügels ausgebildet ist, der auf der Fadenzufuhrseite einen radial nach einwärts sich verjüngenden, als Anlaufschräge für den zulaufenden Faden wirkenden Bereich und daran anschließend einen einen Fadenauflagebereich für mehrere Windungen eines Fadenwickels bildenden, zumindest abschnittsweise im wesentlichen geraden Bereich aufweist, auf den ein radial vorstehender, kreisrunder, durchgehender Fadenablaufbord des Trommelkörpers oder eines damit verbundenen Teiles folgt, wobei die sich verjüngenden und die im wesentlichen geraden Bereiche aller Bügel jeweils auf gemeinsamen, zu der Trommelachse koaxialen gedachten Rotationskörpern liegen sowie mit der Speichertrommel auf der Fadenzu- und -abfuhrzeige zugeordneten Fadenzu- und -abführelementen und mit einer Antriebseinrichtung zur Erzielung einer Relativdrehbewegung zwischen der Speichertrommel und den Fadenzu- und -abführelementen.The invention relates to a thread storage and delivery device, in particular for textile machines, with a storage drum in the manner of a rod cage, which has a number of elongated thread support elements arranged at equal radial distances from the drum axis and distributed uniformly in the circumferential direction and extending essentially at both ends in the drum axis direction a drum body or parts connected thereto and each of which is designed in the form of a narrow bracket which on the thread feed side has a radially inwardly tapering area which acts as a run-on slope for the incoming thread and then a thread support area for several turns of a thread winding Forming, at least in sections essentially straight area, followed by a radially projecting, circular, continuous thread outlet board of the drum body or a part connected thereto, the tapering n and the substantially straight areas of all brackets each lie on common rotational bodies intended to be coaxial with the drum axis, as well as with the storage drum on the thread feeding and removal indicator associated with thread feeding and removal elements and with a drive device for achieving a relative rotary movement between the storage drum and the Thread feeding and removal elements.

Fadenliefervorrichtungen, deren in der Regel an einem Halter drehbar gelagerte Speichertrommel nach Art eines Stabkäfigs ausgebildet ist, dessen durch gerade, zylindrische Drähte oder dünne Stäbe gebildete Fadenauflageelemente beidenends in flanschartigen Teilen eines auf der Speichertrommelachse angeordneten Trommelkörpers befestigt sind, sind in mehreren Ausführungsformen bekannt (beispielsweise DE-OS 3 104 516, DE-OS 2 723 210). Der sich auf den Stäben bildende Fadenwickel erhält eine der Zahl der Stäbe entsprechende polygonale Gestalt, die für eine gute schlupffreie Fadenmitnahme vorteilhaft ist, während andererseits die von den Stäben gebildeten, verhältnismäßig schmalen Fadenauflageflächen günstige Bedingungen für den axialen Vorschub des Speicherwickels ergeben. Um diesen axialen Vorschub des Speicherwickels zu bewirken, müssen aber eigene Vorschubeinrichtungen vorgesehen sein, die verhältnismäßig teuer und aufwendig sind.Thread delivery devices, whose storage drum is rotatably mounted on a holder in the manner of a rod cage, the thread support elements formed by straight, cylindrical wires or thin rods are fastened at both ends in flange-like parts of a drum body arranged on the storage drum axis, are known in several embodiments (for example DE-OS 3 104 516, DE-OS 2 723 210). The thread winding formed on the rods is given a polygonal shape corresponding to the number of rods, which is advantageous for good slip-free thread entrainment, while on the other hand the relatively narrow thread contact surfaces formed by the rods result in favorable conditions for the axial advancement of the storage winding. In order to effect this axial feed of the storage roll, separate feed devices must be provided, which are relatively expensive and complex.

Auf solche Vorschubeinrichtungen verzichtet eine zum Stand der Technik gehörende Fadenliefervorrichtung (DE-OS 3 437 252) dieser Art, deren als Stabkäfig ausgebildete Speichertrommel mit Fadenauflageelementen in Gestalt von aus dünnem Federdraht bestehender Bügel versehen ist, die beidenends an dem Trommelkörper befestigt sind und von denen jeder auf der Fadenzufuhrseite einen radial nach einwärts sich verjüngenden Bereich aufweist, der als Anlaufschräge für den zulaufenden Faden wirkt und an den sich ein im wesentlichen gerader Bereich anschließt, der den Fadenauflagebereich für mehrere Windungen des Faden- oder Speicherwickels bildet. Durch die Schräge des Anlaufbereiches werden die sich hier bildenden Windungen des zulaufenden Fadens unter der Wirkung der Fadenspannung selbsttätig axial auf den Fadenauflagebereich zu verschoben, womit ein fortlaufender Vorschub des Speicherwickels erzielt wird.Such feed devices are dispensed with by a thread delivery device of the prior art (DE-OS 3 437 252) of this type, the storage drum of which is designed as a rod cage is provided with thread support elements in the form of a bow made of thin spring wire, both of which are attached to the drum body and of which each on the thread supply side has a radially inwardly tapering area which acts as a run-on slope for the incoming thread and which is followed by a substantially straight area which forms the thread support area for several turns of the thread or storage roll. Due to the bevel of the start-up area, the turns of the incoming thread which are formed here are automatically axially displaced onto the thread support area under the effect of the thread tension, whereby a continuous advance of the storage roll is achieved.

Von dem Speicherwickel läuft der Faden über den radial vorstehenden, kreisrunden, in Umfangsrichtung durchgehenden Ablaufbord der Fadenauslauf- öse zu. Die Anordnung ist dabei derart getroffen, daß der Fadenablaufbord nach Art einer kreisförmigen Scheibe an dem Trommelkörper angeordnet ist, deren Symmetrieebene etwa rechtwinklig zu dem Fadenauflagebereich der Fadenauflageelemente verläuft. Diese Anordnung gilt grundsätzlich auch für die Speichertrommein der eingangs genannten Fadenliefervorrichtungen.The thread runs from the storage winder over the radially protruding, circular, continuous peripheral edge of the thread outlet eyelet. The arrangement is such that the thread outlet board is arranged in the manner of a circular disk on the drum body, the plane of symmetry of which is approximately at right angles to the thread support area of the thread support elements. In principle, this arrangement also applies to the storage drums in the thread delivery devices mentioned at the beginning.

Bei der Verarbeitung von bestimmten Garnen, insbesondere von Polyamid- oder Polyestergarnen minderer Qualität, können sich abgerissene Einzelfilamente oder andere Faserteile von dem Garn lösen und insbesondere in dem Fadenablaufbereich um die Stäbe oder allgemein freistehenden Fadenauflageelemente herumwickeln. Auch können sich in dem Fadenauflaufbereich zwischen den Stäben oder Fadenauflageelementen festhaftende Ansammlungen solcher Garn- oder Faserteile bilden, die mit längerer Betriebszeit anwachsen. Beide Erscheinungen führen dazu, daß der ordnungsgemäße Fadenablauf von der Speichertrommel schließlich behindert wird und es zu Störungen der Fadenlieferung kommt.When processing certain yarns, in particular low-quality polyamide or polyester yarns, torn-off individual filaments or other fiber parts can detach from the yarn and, in particular, wind around the bars or generally free-standing thread support elements in the thread run-off area. Also in the thread run-up area, adherent collections of such yarn or fiber parts can form between the rods or thread support elements, which accumulate with a longer operating time. Both phenomena lead to the fact that the proper thread flow is finally hindered by the storage drum and there are faults in the thread delivery.

Aufgabe der Erfindung ist es deshalb, hier abzuhelfen und eine Fadenliefervorrichtung der eingangs genannten Art derart zu verbessern, daß auch bei der Verarbeitung solcher schwer zu verarbeitender Garne, beispielsweise von Polyamid- oder Polyestergarnen minderer Qualität, der Gefahr der unerwünschten Ansammlung von abgerissenen oder von dem Garn losgelösten Garnteile, beispielsweise abgerissener Endlosfilamente, in dem Fadenablaufbereich der Speichertrommel vorgebeugt ist.The object of the invention is therefore to remedy this situation and to improve a thread delivery device of the type mentioned at the outset such that even when processing such difficult-to-process yarns, for example of low-quality polyamide or polyester yarns, the risk of undesired accumulation of torn off or of that Parts of yarn detached from the yarn, for example torn continuous filaments, are prevented in the thread drain area of the storage drum.

Zur Lösung dieser Aufgabe ist die Fadenspeicher-und -liefervorrichtung erfindungsgemäß dadurch gekennzeichnet, daß sich an den Fadenablaufbord in Richtung auf die Anlaufschrägen der Bügel zu eine radial nach innen geneigte Umfangsfläche einer zu der Trommelachse koaxialen rotationssymmetrischen Abdeckung anschließt, die zumindest in den zwischen benachbarten Bügeln liegenden Bereichen in Umfangsrichtung durchgehend ist und in die die Bügel im wesentlichen absatzlos eintauchen und daß die Umfangsfläche auf der Fadenablaufseite der Speichertrommel von dem von dem Fadenauflagebereich ablaufenden, zu einem Fadenabführelement gehenden Faden fortlaufend axial abstreifbar ist.To achieve this object, the thread storage and delivery device according to the invention is characterized in that adjoining the thread outlet board in the direction of the bevels of the stirrups is a radially inwardly inclined circumferential surface of a rotationally symmetrical cover which is coaxial with the drum axis and which is at least in the between adjacent stirrups lying areas is continuous in the circumferential direction and into which the brackets are immersed essentially without a step and that the peripheral surface on the thread run-off side of the storage drum can be axially stripped continuously from the thread running from the thread support area to a thread discharge element.

Die von dem ablaufenden Faden ständig abgestreifte Umfangsfläche der Abdeckung verhindert, daß sich im Ablaufbereich des Fadens Faseransammlungen dauernd festsetzen können. Da die Fadenauflageelemente absatzlos in diese Umfangsfläche eintauchen, können sich auch keine toten Winkel in der Nähe der Fadenauflageelemente ausbilden, in denen unerwünschte Ansammlungen anwachsen könnten.The circumferential surface of the cover, which is constantly stripped by the running thread, prevents the accumulation of fibers in the drain region of the thread. Since the thread support elements immerse into this circumferential surface without a step, no blind spots can form in the vicinity of the thread support elements, in which undesired accumulations could grow.

Mit Vorteil erstreckt sich die Umfangsfläche der Abdeckung, ausgehend von einem in der Nähe des Ablaufbordes liegenden Bereiches großen Durchmessers, mit einem Bereich kleineren Durchmessers radial nach innen bis zumindest zu der Mitte der im wesentlichen geraden Bügelteile. Außerdem ist es zweckmäßig, wenn die Umfangsfläche sich einenends absatzlos unmittelbar an den Ablaufbord anschließt.Advantageously, the peripheral surface of the cover extends from a near the Drainage board of the lying area of large diameter, with an area of smaller diameter radially inwards to at least the middle of the substantially straight bracket parts. In addition, it is expedient if the circumferential surface adjoins the end of the outlet board without a step.

Die ringsum durchgehende Umfangsfläche der Abdeckung kann die im wesentlichen geraden Bügelteile aufnehmene Durchbrüche aufweisen, so daß die Bügel von der Umfangsfläche allseits umschlossen sind.The circumferential surface of the cover which is continuous all around can have openings which accommodate substantially straight bracket parts, so that the brackets are enclosed on all sides by the peripheral surface.

Die Umfangsfläche der Abdeckung kann im wesentlichen kegelförmig sein, doch hat es sich als besonders vorteilhaft erwiesen, wenn die Umfangsfläche eine konkave Krümmung aufweist.The peripheral surface of the cover can be substantially conical, but it has proven to be particularly advantageous if the peripheral surface has a concave curvature.

Die Abdeckung kann zweckmäßigerweise aus einem zumindest im Bereich der Umfangsfläche verschleißfesten Material bestehen, so daß auch über lange Betriebszeiträume eine Beeinträchtigung der Oberfläche durch den ständig darüberstreifenden Faden ausgeschlossen ist.The cover can expediently consist of a wear-resistant material, at least in the area of the peripheral surface, so that the surface is not impaired by the thread constantly streaking even over long operating periods.

Besonders einfache konstruktive Verhältnisse ergeben sich, wenn der Trommelkörper zwei koaxiale kreisrunde Flanschen aufweist, an denen die Bügel endseitig befestigt sind und von denen an dem einen der Ablaufbord ausgebildet ist. Die Bügel sind dabei vorteilhafterweise zwischen dem ihrer Anlaufschräge benachbarten Flansch und zumindest im Bereich der Umfangsfläche der Abdeckung freistehend angeordnet. Dies gestattet eine einfache Reinigung mittels eines Druckluftstrahles.Particularly simple structural relationships result if the drum body has two coaxial circular flanges, to which the brackets are attached at the ends and of which the drainage rim is formed on one. The brackets are advantageously arranged free-standing between the flange adjacent to their run-in slope and at least in the region of the peripheral surface of the cover. This allows easy cleaning using a compressed air jet.

Auch können die Bügel im Bereich ihrer Anlaufschräge im wesentlichen tangential in schräge Flächenteile des benachbarten Flansches übergehen, wobei die schrägen Flächenteile auch an den einzelnen Bügeln zugeordneten rippenartigen Teilen des entsprechenden Flansches oder des Trommelkörpers ausgebildet sein können, die im wesentlichen radial verlaufend angeordnet sind. Der Trommelkörper selbst besteht mit Vorteil aus Kunststoff.The brackets can also merge substantially tangentially into oblique surface parts of the adjacent flange in the region of their run-in bevel, the oblique surface parts also being able to be formed on rib-like parts of the corresponding flange or of the drum body associated with the individual brackets, which are arranged essentially radially. The drum body itself is advantageously made of plastic.

Um den axialen Vorschub des Speicherwickels zu erleichtern, können die Bügel mit ihren im wesentlichen geraden Bereichen auf einem gedachten Kegel liegen, dessen Durchmesser zu dem Ablaufbord hin abnimmt. Dabei hat es sich in der Praxis als vorteilhaft erwiesen, wenn die Durchmesserverjüngung der geraden Bereiche der Bügel über deren Länge etwa 0,2 - 1 mm beträgt.In order to facilitate the axial advancement of the storage roll, the brackets can lie with their essentially straight areas on an imaginary cone, the diameter of which decreases towards the outlet board. It has proven to be advantageous in practice if the narrowing of the diameter of the straight regions of the stirrups over their length is approximately 0.2-1 mm.

Die Bügel sind zweckmäßigerweise aus verschleißfestem Draht gebogen, doch ist es grundsätzlich auch denkbar, sie aus vorzugsweise verschleißfest beschichtetem Kunststoff herzustellen, wobei sie dann auch unmittelbar an dem Trommelkörper angeformt oder als gestanzte oder gespritzte Formteile etc. ausgebildet sein können.The stirrups are expediently bent from wear-resistant wire, but in principle it is also conceivable to produce them from preferably wear-resistant coated plastic, in which case they can also be molded directly onto the drum body or formed as stamped or injection-molded molded parts etc.

Um den ablaufenden Faden zur ganzflächigen Anlage an den Bügeln und der Umfangsflächeabdekkung zu zwingen, kann auf die Bügel im Bereich der Abdeckung ein Fadenablaufring unverlierbar lose aufgelegt sein.In order to force the running thread to rest over the entire surface of the brackets and the peripheral surface covering, a thread drain ring can be loosely placed on the brackets in the area of the cover.

In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt. Es zeigen:

  • Fig. 1 eine Fadenspeicher- und -liefervorrichtung gemäß der Erfindung, in einer Seitenansicht,
  • Fig. 2 die Speichertrommel der Fadenspeicher- und -liefervorrichtung nach Fig. 1, in einer Seitenansicht und in einem anderen Maßstab,
  • Fig. 3 die Speichertrommel nach Fig. 2, geschnitten längs der Linie 111-111 der Fig. 2, in einer Draufsicht und in einer Teildarstellung, und
  • Fig. 4 eine Einzelheit der Speichertrommel nach Fig. 2 im Ausschnitt, in einer Teildarstellung und in einer Seitenansicht.
In the drawing, an embodiment of the object of the invention is shown. Show it:
  • 1 is a thread storage and delivery device according to the invention, in a side view,
  • 2 shows the storage drum of the thread storage and delivery device according to FIG. 1, in a side view and on a different scale,
  • Fig. 3, the storage drum of FIG. 2, cut along the line 111-111 of FIG. 2, in a plan view and in a partial view, and
  • Fig. 4 shows a detail of the storage drum of FIG. 2 in a detail, in a partial view and in a side view.

Die in Fig. 1 dargestellte Fadenspeicher- und -liefervorrichtung weist einen zur Befestigung an einem Gestellring einer Rundstrickmaschine eingerichteten Halter 1 auf, an dem mittels einer Achse 2 (Fig. 3) eine Speichertrommel 4 drehbar gelagert ist, der als Antriebseinrichtung eine auf die Achse 2 drehfest aufgesetzte Riemenscheibe 5 zugeordnet ist, welche durch einen nicht weiter dargestellten Antriebsriemen in Umdrehung gesetzt werden kann.The thread storage and delivery device shown in FIG. 1 has a holder 1 which is set up for fastening to a frame ring of a circular knitting machine and on which a storage drum 4 is rotatably mounted by means of an axle 2 (FIG. 3), which as a drive device has an axle 2 rotatably attached pulley 5 is assigned, which can be set in rotation by a drive belt, not shown.

An dem Halter 1 sind als Fadenzuführeinrichtungen eine Fadeneinlauföse 6 und ein Fadeneinlaufauge 7 angeordnet, durch die ein von einer nicht dargestellten Spule kommender Faden 8 über eine ebenfalls an dem Halter 1 vorgesehene Fadenbremse 9 der Speichertrommel 4 zugeleitet wird. Ein Einlauffühler 10tastet den der Speichertrommel 4 zulaufenden Faden ab und bewirkt bei Fadenbruch ein Abstellen der Maschine. Der von der Speichertrommel 4 ablaufende Faden 8 läuft durch eine die Fadenabführeinrichtung bildende Auslauföse 11, die an dem Halter 1 befestigt ist und seitlich neben der Speichertrommel 4 sowie in einem vorbestimmten Abstand unterhalb deren Ablaufbord 12 steht, so daß der von der Speichertrommel 4 tangential ablaufende Faden schräg nach unten und radial nach außen geleitet wird; er wird durch einen Auslauffühler 120 abgetastet.A thread inlet eyelet 6 and a thread inlet eye 7 are arranged on the holder 1 as thread feed devices, through which a thread 8 coming from a spool (not shown) is fed to the storage drum 4 via a thread brake 9 also provided on the holder 1. An inlet sensor 10 scans the thread running towards the storage drum 4 and, if the thread breaks, stops the machine. The thread 8 running out of the storage drum 4 runs through an outlet eyelet forming the thread removal device, which is attached to the holder 1 and is located laterally next to the storage drum 4 and at a predetermined distance below its outlet board 12, so that the outlet drum 4 runs tangentially Thread is guided diagonally downwards and radially outwards; it is sensed by an outlet sensor 120.

Der Aufbau der Speichertrommel 4 ist im einzelnen insbesondere aus den Fig. 2, 3 zu ersehen:The structure of the storage drum 4 can be seen in particular from FIGS. 2, 3:

Die im wesentlichen aus Kunststoffmaterial hergestellte Speichertrommel weist einen etwa scheibenförmigen kreisrunden oberen Flansch 13 und einen den durchgehenden Ablaufbord 12 bildenden, ebenfalls kreisrunden unteren Flansch 14 auf, die koaxial zueinander im Abstand angeordnet und über ein koaxiales Nabenteil 15 miteinander verbunden sind. Nach Art eines Stabkäfigs sind eine Anzahl in gleichen radialen Abständen von der Trommelachse 2 angeordneter und in Umfangsrichtung gleichmäßig verteilter länglicher Fadenauflageelemente vorgesehen, die durch im wesentlichen L-förmige Bügel 16 gebildet sind, welche aus gehärtetem zylindrischem Stahldraht mit polierter Oberfläche gebogen sind. . Die Bügel 16 sind mit ihren Enden in den beiden Flanschen 13, 14 verankert. Sie weisen auf der Fadenzufuhrseite (in Fig. 2 oben) jeweils einen radial nach einwärts sich verjüngenden Bereich 17 auf, der eine Anlaufschräge für den zulaufenden Faden 8 bildet, an die sich über einen Radius 18 ein im wesentlichen gerader Bereich 19 anschließt, der als Fadenauflagebereich für mehrere Windungen eines bei 20 angedeuteten Faden- oder Speicherwickels dient. Der Radius 18 zwischen der Anlaufschräge und dem Fadenauflagebereich kann in der Größenordnung von ca. dem Einfachen bis Vierfachen des Drahtdurchmessers der Bügel 16 liegen. Sowohl die sich verjüngenden Bereiche 17 als auch die dem Radius 18 zugeordneten Bereiche 19 aller Bügel 16 liegen auf jeweils einem gemeinsamen zu der Trommelachse 2 koaxialen gedachten Rotationskörper.The storage drum, which is essentially made of plastic material, has an approximately disk-shaped circular upper flange 13 and a circular lower flange 14, which also forms the continuous outlet flange 12 and is arranged coaxially at a distance from one another and connected to one another via a coaxial hub part 15. In the manner of a rod cage, a number of elongate thread support elements arranged at equal radial distances from the drum axis 2 and evenly distributed in the circumferential direction are provided, which are formed by essentially L-shaped brackets 16 which are bent from hardened cylindrical steel wire with a polished surface. . The ends of the brackets 16 are anchored in the two flanges 13, 14. They each have a radially inwardly tapering region 17 on the thread feed side (top in FIG. 2), which forms a run-on slope for the incoming thread 8, to which a substantially straight region 19 adjoins via a radius 18, which is called Thread support area serves for several turns of a thread or storage roll indicated at 20. The radius 18 between the run-on slope and the thread support area can be of the order of magnitude of approximately one to four times the wire diameter of the stirrups 16. Both the tapered Areas 17 and also the areas 19 of all brackets 16 assigned to the radius 18 lie on a common rotational body which is coaxial to the drum axis 2.

Der dem geraden Bereich 19 zugeordnete gedachte Rotationskörper ist dabei ein Kegel schwacher Neigung, dessen Durchmesser zu dem Ablaufbord 12 hin abnimmt. Die Durchmesserverjüngung beträgt bei den geraden Bereichen 19 über deren Länge etwa 0,2 - 1 mm.The imaginary rotational body assigned to the straight region 19 is a cone with a slight incline, the diameter of which decreases towards the outlet rim 12. The narrowing of the diameter in the straight regions 19 is approximately 0.2-1 mm over their length.

Im Bereich ihrer Anlaufschräge bei 17 gehen die Bügel 16 im wesentlichen tangential in schräge Flächenteile 21 des benachbarten Flansches 13 über, die auf rippenartigen Teilen 22 des Flansches 13 ausgebildet sind, welche im wesentlichen radial verlaufend angeordnet sind. Alternativ könnte auch eine ununterbrochen durchgehende, d.h. geschlossene Schrägfläche 21 vorgesehen sein.In the area of their run-in slope at 17, the brackets 16 essentially transition tangentially into inclined surface parts 21 of the adjacent flange 13, which are formed on rib-like parts 22 of the flange 13, which are arranged essentially radially. Alternatively, an uninterrupted, i.e. closed inclined surface 21 may be provided.

Auf den unteren Flansch 14 ist eine aus Metall oder einem mit einer verschleißfesten Oberfläche versehenen Kunststoff bestehende Abdeckung 23 aufgesetzt, die gegebenenfalls auch einstückig mit dem Flansch 14 ausgebildet sein kann. Die in Gestalt eines zu der Trommelachse 2 koaxialen Rotationskörpers ausgebildete Abdeckung 23 weist eine in Richtung auf die Anlaufschrägen 17 der Bügel 16 zu radial nach innen geneigte Umfangsfläche 24 auf, in die die Bügel 16 mit ihren geraden Bereichen im wesentlichen absatzlos, d.h. mit sanftem Übergang, eintauchen. Zu diesem Zweck sind in der ringsum durchgehenden Umfangsfläche 24 der Abdeckung 23 lediglich die im wesentlichen geraden Bügelbereiche 19 aufnehmende Durchbrechungen 25 vorgesehen, deren Berandung sich eng an die Bügelbereiche 19 anschließt.A cover 23 made of metal or a plastic provided with a wear-resistant surface is placed on the lower flange 14 and can optionally also be formed in one piece with the flange 14. The cover 23, which is designed in the form of a rotary body coaxial with the drum axis 2, has a circumferential surface 24 which is inclined radially inward in the direction of the run-up bevels 17 of the brackets 16, into which the bracket areas 16 with their straight regions are essentially without shoulder, i.e. with a smooth transition, immerse yourself. For this purpose, only the substantially straight bracket areas 19 receiving openings 25 are provided in the continuous circumferential surface 24 of the cover 23, the edge of which closely adjoins the bracket areas 19.

Die Umfangsfläche 24 schließt sich in dem (unteren) Bereich größten Durchmessers absatzlos an den kreisrunden Ablaufbord 12 an und erstreckt sich dann mit konkaver Krümmung radial nach innen, wobei sie mit ihrem Bereich kleinsten Durchmessers zumindest bis zu der Mitte der im wesentlichen geraden Bügelbereiche, im vorliegenden Fall jedoch bis hinter die radial innenliegende Seite der im wesentlichen geraden Bügelbereiche 19 sich erstreckt.The peripheral surface 24 connects in the (lower) area of largest diameter to the circular drain board 12 and then extends radially inwards with a concave curvature, with its area of smallest diameter at least up to the center of the substantially straight bracket areas, in In the present case, however, it extends to behind the radially inner side of the substantially straight bracket regions 19.

Abweichend von der dargestellten Ausführungsform könnte die Umfangsfläche 24 auch eine Kegelfläche sein. Dann muß die Breite des Speicherwickels 20 aber so bemessen sein, daß der ablaufende Faden 8 sich erst sehr tief von dem Speicherwickel 20 trennt.Deviating from the illustrated embodiment, the peripheral surface 24 could also be a conical surface. Then the width of the storage roll 20 must be dimensioned such that the running thread 8 only separates from the storage roll 20 very deeply.

Schließlich ist auf die Abdeckung 23 ein die Bügel 16 mit Spiel umschließender Fadenablaufring 27 unverlierbar lose aufgelegt, derart, daß der ablaufende Faden 8 zwischen dem Fadenablaufring 27 und der Umfangsfläche 24 der Abdeckung 23 bzw. dem Ablaufbord 12 hindurchläuft.Finally, on the cover 23 a bracket 16 with play enclosing thread drain ring 27 is loosely placed in such a way that the running thread 8 runs between the thread drain ring 27 and the peripheral surface 24 of the cover 23 or the outlet board 12.

Der von der Einlauföse 6 kommende zulaufende Faden 8 läuft etwa bei 28 in Fig. 2 auf die die Anlaufschräge bildenden, nach einwärts geneigten Teile 17 der Bügel 16 auf und beginnt im Bereich des Radius den Speicherwickel 20 zu bilden. Der zulaufende Faden 8 stützt sich dabei oben an den in dem Radius 18 nach außen gebogenen Teilen der Bügel 16 und an der Anlaufschräge ab und schiebt somit den Speicherwickel 20 fortlaufend axial nach unten. Dieses Vorschieben des Speicherwickels 20 wird dadurch erleichtert, daß die im wesentlichen geraden Fadenauflagebereiche 19 der Bügel 16 auf einem zu dem Ablaufbord 12 zu sich leicht verjüngenden gedachten Kegel liegen, wie dies bereits erläutert wurde.The incoming thread 8 coming from the inlet eyelet 6 runs approximately at 28 in FIG. 2 onto the inwardly inclined parts 17 of the stirrups 16 which form the run-up slope and begins to form the storage roll 20 in the region of the radius. The incoming thread 8 is supported at the top on the parts of the brackets 16 bent outwards in the radius 18 and on the run-up slope and thus continuously pushes the storage roll 20 axially downward. This advancement of the storage reel 20 is facilitated by the fact that the substantially straight thread support areas 19 of the stirrups 16 lie on an imaginary cone which tapers slightly towards the outlet board 12, as has already been explained.

Der von dem Speicherwickel 20 zu der Auslauföse 11 und von da zu der Strickstelle laufende Faden 8 bestreicht in dem in Fig. 2 dargestellten Bereich der Speichertrommel 4 von links nach rechts fortschreitend von oben nach unten die unter dem Speicherwickel 20 liegenden geraden Bereiche 19 der Bügel 16 und die zwischen und unterhalb der Durchbrechungen 25 liegenden Bereiche der Umfangsfläche 24 der Abdeckung 23. Dadurch erfolgt ein fortlaufendes Abstreifen oder Abwischen sowohl der die Fadenauflageelemente bildenden Bügel 16 als auch der Umfangsfläche 24 in im wesentlichen axialer Richtung, wie dies nochmals in Fig. 4 schematisch veranschaulicht ist. Dabei wird eine Ansammlung von von dem Faden 8 mitgeführten Faden- oder Faserteilchen wirksam verhindert, wie auch verhütet wird, daß losgerissene Filamente sich im Fadenablaufbereich um die Bügel 16 schlingen können. Da die Bügelbereiche 19 über die eng anliegenden Durchbrechungen 25 weich und stufenlos in die Umfangsfläche 24 eintauchen, sind tote Winkel vermieden, die von dem Faden 8 nicht bestrichen werden können und deshalb zum Anwachsen von Faseransammlungen führen könnten.The thread 8 running from the storage reel 20 to the outlet eyelet 11 and from there to the knitting point progressively sweeps from left to right from top to bottom in the region of the storage drum 4 shown in FIG. 2, the straight regions 19 of the stirrups lying under the storage reel 20 16 and the areas of the circumferential surface 24 of the cover 23 lying between and below the openings 25. This results in a continuous wiping or wiping of both the stirrups 16 forming the thread support elements and the circumferential surface 24 in an essentially axial direction, as shown again in FIG. 4 is illustrated schematically. A build-up of thread or fiber particles carried along by the thread 8 is effectively prevented, and it is also prevented that torn-off filaments can loop around the bow 16 in the thread outlet area. Since the stirrup areas 19 plunge softly and continuously into the peripheral surface 24 via the closely fitting openings 25, blind spots are avoided, which cannot be covered by the thread 8 and could therefore lead to the accumulation of fibers.

Der auf die Abdeckung 23 aufgelegte, beispielsweise aus Kunststoffmaterial bestehende Fadenablaufring 27 zwingt den durch ihn durchlaufenden Faden 8 zur ganzflächigen Anlage an den Bügelbereichen 19 und an der Umfangsfläche 24 der Abdeckung 23.The thread drain ring 27 placed on the cover 23, for example made of plastic material, forces the thread 8 passing through it to rest over the whole area on the bracket regions 19 and on the peripheral surface 24 of the cover 23.

Bei dem dargestellten Ausführungsbeispiel ist die Umfangsfläche 24 ringsum durchgehend ausgebildet, wobei lediglich die Durchbrechungen 25 den Durchtritt der Bügelbereiche 19 gestatten. Alternativ wäre es auch denkbar, die schräge Umfangsfläche 24 lediglich auf Flächenbereiche zwischen den Bügelbereichen 19 aufzuteilen, wobei dann gegebenenfalls die Bügel 16 in der Nähe des Flansches 12, d.h. anschließend an die im wesentlichen geraden Bereiche 19, ähnlich wie bei 17, schräg nach außen gebogen sein könnten, so daß sich eine im wesentlichen C-förmige Gestalt der Bügel ergibt.In the illustrated embodiment, the peripheral surface 24 is continuous all around, only the openings 25 allowing the passage of the bracket areas 19. Alternatively, it would also be conceivable to divide the inclined circumferential surface 24 only over surface areas between the bracket areas 19, the brackets 16 then possibly in the vicinity of the flange 12, i.e. subsequent to the substantially straight areas 19, similar to 17, could be bent obliquely outwards, so that there is a substantially C-shaped shape of the bracket.

Die Bügel 16sind, wie aus Fig. 2zu ersehen, beginnend mit ihrem Bereich 17, bis zum Eintauchen in die Durchbrechungen 25 freistehend angeordnet, was durch einen entsprechend kleinen Durchmesser des Nabenteiles 15 erreicht ist. Es sind auch Ausführungsformen vorstellbar, bei denen die Bügel beispielsweise zur Hälfte ihres Durchmessers im Kunststoffmaterial des Trommelkörpers oder des Nabenteiles 15 eingebettet sind.As can be seen from FIG. 2, the brackets 16 are arranged in a free-standing manner starting with their region 17 until they are immersed in the openings 25, which is achieved by a correspondingly small diameter of the hub part 15. Embodiments are also conceivable in which the brackets are embedded in the plastic material of the drum body or the hub part 15, for example, by half their diameter.

Die Bügel 16 können auch aus Stahlblech gestanzte oder aus Kunststoffmaterial etc. gespritzte Formteile sein, wie es auch denkbar ist, profilierte Drähte, die eine von der kreisrunden Querschnittsform abweichende Querschnittsform aufweisen, für diesen Zweck zu verwenden.The brackets 16 can also be molded parts stamped from sheet steel or injection molded from plastic material, etc., as is also conceivable to use profiled wires that have a cross-sectional shape that deviates from the circular cross-sectional shape for this purpose.

Claims (17)

1. Device for storing and supplying thread, in particular, for textile machines, with a storage drum in the style of a bar cage comprising a number of elongate thread supporting elements arranged at equal radial distances from the drum axle and distributed uniformly in the circumferential direction, which, extending substantially in the axial direction of the drum, are attached at both ends to a drum body or to parts connected thereto, and each of which is in the form of a narrow support (16) comprising on the thread feeding side a radially inwardly tapering area (17) acting as run-on slope for the incoming thread and an adjoining area (19) which is substantially straight at least in sections thereof, forming a thread supporting area for several windings of a coil of thread, followed by a radially protruding, circular, continuous thread run-off rim (12) of the drum body or of a part connected thereto, the tapering and substantially straight areas of all supports being located on common, conceived solids of revolution coaxial with the drum axis, and with thread feeding (6) and thread removing elements (11) associated with the storage drum on the thread feeding side and the thread removing side, and with a driving mechanism (5) for producing a relative rotational motion between the storage drum and the thread feeding and thread removing elements, characterized in that the thread run-off rim (12) is adjoined in the direction of the run-on slopes (17) of the supports (16) by a radially inwardly inclined circumferential surface (24) of a rotation-symmetrical cover (23) which is coaxial with the drum axle (2) and which is continuous in the circumferential direction, at least in the areas located between neighbouring supports (16), and into which the supports (16) sink in a substantially uninterrupted manner such that the circumferential surface (24) on the thread run-off side of the storage drum (4) is continuously axially scrapeable by the thread (8) as it unwinds from the thread supporting area (19) and travels to a thread removing element (11).
2. Device as defined in Claim 1, characterized in that the circumferential surface (24) of the cover (23) starting from an area of large diameter located in the proximity of the run-off rim (12), extends with an area (26) of smaller diameter radially inwardly as far as at least to the centre of the substantially straight support areas (19).
3. Device as defined in Claims 1 or 2, characterized in that the circumferential surface (24) of the cover directly adjoins the run-off rim (12) at one end in an uninterrupted manner.
4. Device as defined in one of the preceding claims, characterized in that the all around continuous circumferential surface (24) of the cover (23) comprises apertures (25) accommodating the substantially straight support areas (19).
5. Device as defined in one of the preceding claims, characterized in that the circumferential surface (24) of the cover (23) is of substantially conical shape.
6. Device as defined in one of Claims 1 to 4, characterized in that the circumferential surface (24) of the cover (23) has a concave curvature.
7. Device as defined in one of the preceding claims, characterized in that the cover (23) consists of a material which is wear-resistant, at least in the area of the circumferential surface (24).
8. Device as defined in one of the preceding claims, characterized in that the drum body comprises two coaxial, circular flanges (13, 14) to which the supports (16) are attached at the ends, and at one of which the run-off rim (12) is formed.
9. Device as defined in Claim 8, characterized in that the supports (16) are arranged so that they stand alone between the flange (13) adjacent to their run-on slope (17) and, at least in the area of the circumferential surface (24), the cover (23).
10. Device as defined in Claims 8 or 9, characterized in that the area of their run-on slope (17), the supports (16) merge essentially tangentially into inclined surface parts (21 ) of the adjacent flange (13).
11. Device as defined in Claim 10, characterized in that the inclined surface parts (21) are formed on rib-like parts (22) of the corresponding flange (13) or the drum body which are associated with the individual supports (16) and are arranged so that they extend substantially radially.
12. Device as defined in one of the preceding claims, characterized in that the drum body consists of plastic.
13. Device as defined in one of the preceding claims, characterized in that the supports (16) lie with their substantially straight areas (19) on a conceived cone whose diameter decreases towards the run-off rim (12).
14. Device as defined in Claim 13, characterized in that the diameter taper of the straight areas (19) of the supports (16) is approximately 0.2 to 1 mm throughout their length.
15. Device as defined in one of the preceding claims, characterized in that the supports (16) are bent from wear-resistant wire.
16. Device as defined in one of Claims 1 to 14, characterized in that the supports are punched or injection-moulded shaped parts.
17. Device as defined in one of the preceding claims, characterized in that a ring (27) for the unwinding thread surrounding the supports (16) is placed loosely, but so that it cannot get lost, on the cover (23).
EP19870100244 1986-01-21 1987-01-10 Thread storage and delivery device, particularly for textile machines Expired EP0234208B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3601586 1986-01-21
DE3601586A DE3601586C1 (en) 1986-01-21 1986-01-21 Thread storage and delivery device, in particular for textile machines

Publications (2)

Publication Number Publication Date
EP0234208A1 EP0234208A1 (en) 1987-09-02
EP0234208B1 true EP0234208B1 (en) 1989-12-20

Family

ID=6292251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870100244 Expired EP0234208B1 (en) 1986-01-21 1987-01-10 Thread storage and delivery device, particularly for textile machines

Country Status (12)

Country Link
US (1) US4793565A (en)
EP (1) EP0234208B1 (en)
JP (1) JPS63500793A (en)
KR (1) KR890001491B1 (en)
CN (1) CN1009640B (en)
DD (1) DD253237A5 (en)
DE (1) DE3601586C1 (en)
ES (1) ES2012459B3 (en)
HK (1) HK57291A (en)
SU (1) SU1568893A3 (en)
UA (1) UA7586A1 (en)
WO (1) WO1987004417A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782424A (en) * 1993-01-21 1998-07-21 Memminger-Iro Gmbh Thread brake
EP0943571A2 (en) * 1998-03-14 1999-09-22 Memminger-IRO GmbH Yarn feeder with improved yarn path

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901373C1 (en) * 1989-01-18 1990-03-22 Memminger-Iro Gmbh, 7290 Freudenstadt, De Apparatus for feeding tear-resistant filamentary material to the knitting stations of a multi-system circular knitting machine
KR930003806B1 (en) * 1989-06-17 1993-05-13 유재풍 Automatic threads supplying devices for knitting machine
DE3924883A1 (en) * 1989-07-27 1991-01-31 Horst Paepke Yarn clearer for textile machinery - has creel to aid in detection of knots
DE4120328C1 (en) * 1991-06-20 1993-01-07 Memminger-Iro Gmbh, 7290 Freudenstadt, De Self-cleaning yarn brake giving improved cleaning action - has two disc- or plate-shaped brake elements mounted on bearing means and pressed against each other yieldingly through loading means
DE19637556C1 (en) * 1996-09-14 1998-01-08 Memminger Iro Gmbh Circular loom and knitter yarn feed
DE29616525U1 (en) * 1996-09-23 1996-11-07 Lin, Tean-Lai, Taipeh/T'ai-pei Thread roll for an automatic thread storage and loading unit of a knitting machine
US5802879A (en) * 1997-01-10 1998-09-08 Min; Lin Chung Knitting machine yarn receiver with accumulated waste discharge device
US5802880A (en) * 1997-01-10 1998-09-08 Min; Lin Chung Improvement of yarn supply reel and yarn guide for knitting machines
KR100365125B1 (en) * 1998-03-02 2003-08-02 장병인 Yarn feeder for textile machinery
KR19990084799A (en) * 1998-05-11 1999-12-06 장병호 Sending device in knitting machine
DE19840727A1 (en) * 1998-09-07 2000-05-25 Memminger Iro Gmbh Thread delivery device for textile machines
TW423535U (en) * 1998-09-23 2001-02-21 Chen Ren Huei Self-cleaning weft storing and feeding apparatus
DE10006599A1 (en) * 2000-02-15 2001-08-23 Memminger Iro Gmbh Friction feeder with vibration excitation
ITFI20090022A1 (en) * 2009-01-30 2010-07-31 Pilotelli Macchine Tessili Srl "A YARN FEEDER WITH A CLEANING SYSTEM TO PREVENT FIBER COLLECTION"
DE602009000914D1 (en) * 2009-02-16 2011-04-28 Lgl Electronics Spa Yarn feeding device with a light thread take-up drum

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1074376B (en) * 1976-05-22 1985-04-20 Shelton Alan Ltd TEXTILE WIRE FEEDER DEVICE CAPABLE OF STORAGE OF ITSELF
NL7806469A (en) * 1978-06-15 1979-12-18 Rueti Te Strake Bv DEVICE FOR FORMING A STOCK WRAP FROM A WIRE LEADED FROM A STOCK OF YARN STOCK.
SE8100561L (en) * 1980-02-12 1981-08-13 Shelton Alan Ltd YARN FEEDING DEVICE
DE3031260A1 (en) * 1980-08-19 1982-03-25 Sobrevin Société de brevets industriels-Etablissement, Vaduz DELIVERY DEVICE FOR RUNNING THREADS
DE3042989A1 (en) * 1980-11-14 1982-07-01 Memminger Gmbh, 7290 Freudenstadt THREAD DELIVERY DEVICE FOR TEXTILE MACHINES
DE8318792U1 (en) * 1983-06-29 1983-12-22 SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH, 7470 Albstadt THREAD STORAGE AND DELIVERY DEVICE FOR TEXTILE MACHINES
DE3372297D1 (en) * 1983-11-22 1987-08-06 Rueti Ag Maschf Weft yarn storage unit for looms
DE3429219A1 (en) * 1984-08-08 1986-02-20 Sobrevin Société de brevets industriels-Etablissement, Vaduz THREAD STORAGE AND DELIVERY DEVICE
DE3437252C1 (en) * 1984-10-11 1986-01-16 Gustav 7290 Freudenstadt Memminger Thread storage and delivery device, in particular for textile machines
DE3506490A1 (en) * 1985-02-23 1986-09-04 Sobrevin Société de brevets industriels-Etablissement, Vaduz DELIVERY DEVICE FOR RUNNING THREADS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782424A (en) * 1993-01-21 1998-07-21 Memminger-Iro Gmbh Thread brake
EP0943571A2 (en) * 1998-03-14 1999-09-22 Memminger-IRO GmbH Yarn feeder with improved yarn path

Also Published As

Publication number Publication date
SU1568893A3 (en) 1990-05-30
US4793565A (en) 1988-12-27
UA7586A1 (en) 1995-09-29
ES2012459B3 (en) 1990-04-01
DD253237A5 (en) 1988-01-13
KR870007319A (en) 1987-08-18
WO1987004417A1 (en) 1987-07-30
DE3601586C1 (en) 1987-05-27
JPS63500793A (en) 1988-03-24
CN1009640B (en) 1990-09-19
CN87100370A (en) 1987-08-05
HK57291A (en) 1991-08-02
EP0234208A1 (en) 1987-09-02
KR890001491B1 (en) 1989-05-04
JPH022778B2 (en) 1990-01-19

Similar Documents

Publication Publication Date Title
EP0234208B1 (en) Thread storage and delivery device, particularly for textile machines
DE3326099C2 (en) Yarn feeding device for textile machines
EP0177797B1 (en) Device for storing and delivering threads, especially for textile machines
DE2427400C3 (en) Device for storing weft threads
DE2343872A1 (en) METHOD AND DEVICE FOR SPINNING AN OPEN END TYPE OF THREAD
DE4336994C1 (en) Thread delivery device with continuously adjustable thread pull tension
DE3006197C2 (en) Thread delivery device, in particular for knitting machines
DE3417936C2 (en) Yarn feeding device for textile machines
DE3206478C2 (en) Device for pulling off a yarn end on rotating textile bobbins
DE3600586C1 (en)
EP0217373B1 (en) Thread delivery device for textile machines
DE2855606C2 (en) Thread guide on a creel for warping and warping systems or the like.
DE3516891C1 (en) Thread delivery device for textile machines
DE69819422T2 (en) Process for fastening a special material band on a textile carrier and the associated textile carrier
DE19538135A1 (en) Thread device for textile machines
DE3410758A1 (en) TEXTILE SPINDLE UNIT
DE3326433C1 (en) Yarn delivery device for textile machines
DE2926814A1 (en) Knitter yarn feed - has a limit stirrup near yarn store drum to prevent stoppages through broken filaments
DE2936375C2 (en) Thread delivery device, especially for knitting machines
EP1215151A2 (en) Yarn processing system
DE3134616A1 (en) METHOD AND DEVICE FOR REMOVING AND DEPOSITING ENDLESS FILAMENT, STRAND OR CABLE MATERIAL
DE2936195C2 (en) Thread delivery device, especially for knitting machines
DE2951346A1 (en) THREAD STORAGE
DE4100384C1 (en) Appts. for knotting new- and old textile warps together - winds pre-determined length of warp from band spindle onto a pre-spool spindle, fixes end to empty spindle etc.
DE2216647A1 (en) THREAD DELIVERY DEVICE FOR TEXTILE MACHINERY

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): ES GB IT

17P Request for examination filed

Effective date: 19880106

17Q First examination report despatched

Effective date: 19890418

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MEMMINGER-IRO GESELLSCHAFT MIT BESCHRAENKTER HAFTU

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES GB IT

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: TRIPLITE LTD.

Effective date: 19900911

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: MEMMINGER-IRO GMBH

ITTA It: last paid annual fee
PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19920702

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041229

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050124

Year of fee payment: 19

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060111

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060131

Year of fee payment: 20

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060110

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060111